Competing forces: How molecules maintain their structure

A double helix twisted around itself: this is the distinctive structure of DNA, which is made up of large molecules. Using synthetically produced molecules, chemists and physicists have investigated the forces which are at work inside the molecule to g...

A double helix twisted around itself: this is the distinctive structure of DNA, which is made up of large molecules. Using synthetically produced molecules, chemists and physicists have investigated the forces which are at work inside the molecule to give it its three-dimensional structure.